Preheat the oven to 220C, fan-forced. Line an oven tray with baking paper. Cut the unpeeled sweet potatoes into 2cm-thick wedges. Put the wedges on the lined tray, drizzle with 2 tsp olive oil, scatter with the country seasoning, season with pepper and toss to coat. Roast for 20-22 mins until golden and tender.
Step 2 — Prep ingredients
CHICKEN OPTION Meanwhile, combine the barbecue seasoning, 1 tbs water and ½ tsp sugar in a bowl. Put the chicken flat on a board, put your hand on top and halve horizontally into fillets. Season with salt and pepper.
Step 3 — Cook chicken
Heat 1 tbs olive oil in a medium frypan over medium-high heat. Cook the chicken for 2-4 mins each side until golden and cooked through. Add the barbecue seasoning mixture and cook, turning, for 30 secs or until coated. Remove from the pan and rest for 3 mins.
Step 4 — Toast buns
While the chicken is cooking, halve the buns through the middle. Put on an oven tray, cut-side up, and bake for 4 mins or until lightly toasted.
Step 5 — Prep tomato and spinach
Meanwhile, thinly slice the tomato and season with salt and pepper. Whisk 1 tsp extra virgin olive oil and ½ tsp white wine vinegar in a large bowl and season with salt and pepper. Add half the spinach to the dressing and gently toss to coat.
Step 6 — Get ready to serve
Combine the mayonnaise and 1 tsp dijon mustard in a bowl (or leave the mustard out if you prefer). Spread the bun bases with the mayonnaise mixture. Divide the chicken, undressed spinach and some of the tomato among the bases, then sandwich with the bun tops. Add the remaining tomato to the dressed spinach. Serve burgers with wedges and salad.